Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
020024goodexcellent21excellent
010026goodexcellent31excellent
000027goodexcellent31excellent
230021goodexcellent21excellent
220034goodexcellent41excellent
210030goodexcellent31excellent
200021goodexcellent21excellent
190010excellentexcellent11excellent
18009excellentexcellent11excellent
17009excellentexcellent11excellent
160016excellentexcellent11excellent
150014excellentexcellent11excellent
140011excellentexcellent11excellent
13009excellentexcellent11excellent
120015excellentexcellent11excellent
11009excellentexcellent11excellent
10008excellentexcellent11excellent
090013excellentexcellent11excellent
08006excellentexcellent11excellent
07003excellentexcellent11excellent
06001excellentexcellent11excellent
05007excellentexcellent11excellent
040017excellentexcellent11excellent
030016excellentexcellent11excellent